Home / 17,127.99-25,691.45-7,761.15

Finding the Fourth Proportional to 17,127.99, 25,691.45 and 7,761.15

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Solution

The fourth proportional to 17,127.99, 25,691.45 and 7,761.15 is: 11,641.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,127.99 : 25,691.45 = 7,761.15 : x
  2. Step 2: Convert to fraction form
    17,127.99/25,691.45 = 7,761.15/x
  3. Step 3: Cross multiply
    17,127.99x = 25,691.45 × 7,761.15
  4. Step 4: Simplify right side
    17,127.99x = 199,395,158.36
  5. Step 5: Solve for x
    x = 199,395,158.36/17,127.99
  6. Step 6: Final answer
    x = 11,641.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.